Overview
- Federal and state authorities inaugurated the season at Sierra Chincua, opening sites in Michoacán and Estado de México daily from 08:00 to 17:00 through March 31, 2026.
- Tourism officials project about 800,000 visitors and roughly 1 billion pesos in economic impact during the 2025–2026 season.
- An international coalition deployed roughly 400–500 solar- and Bluetooth-enabled transmitters, logging routes from North America through the Gulf and Caribbean to Mexico.
- Tracking confirmed at least one tagged butterfly, MW026, released in Lawrence, Kansas, reached oyamel forests in Michoacán on November 9 after a weeks-long journey.
- Authorities highlighted ejidos and local communities as forest guardians and called for trinational action as deforestation, extreme weather, pesticides, and milkweed loss threaten the migration, with more device deployments planned into spring 2026.